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* [ethernet] Add MII link status functions from LinuxDaniel Verkamp2009-05-262-0/+206
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [ethernet] Update mii.h and use it in drivers that had a private copyDaniel Verkamp2009-05-2613-535/+127Star
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [ethernet] Move struct mii_if_info to mii.hDaniel Verkamp2009-05-263-13/+21
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [settings] Allow for arbitrarily-named settingsMichael Brown2009-05-266-99/+297
| | | | | This provides a mechanism for using arbitrarily-named variables within gPXE, using the existing syntax for settings.
* [multiboot] Include argv[0] as part of "command line"Michael Brown2009-05-261-5/+6
| | | | | Grub will include the module name as part of the command line, and some multiboot kernels expect this to be done.
* [dhcp] Choose ProxyDHCP port based on presence of PXE optionsMichael Brown2009-05-221-6/+22
| | | | | | | | | | | | | | | | | | | | | | | If the ProxyDHCPOFFER already includes PXE options (i.e. option 60 is set to "PXEClient" and option 43 is present) then assume that the ProxyDHCPREQUEST can be sent to port 67, rather than port 4011. This is a reasonable assumption, since in that case the ProxyDHCP server has already demonstrated by responding to the DHCPDISCOVER that it is listening on port 67. (If the ProxyDHCP server were not listening on port 67, then the standard DHCP server would have been configured to respond with option 60 set to "PXEClient" but no option 43 present.) The PXE specification is ambiguous on this point; the specified behaviour covers only the cases in which option 43 is *not* present in the ProxyDHCPOFFER. In these cases, we will continue to send the ProxyDHCPREQUEST to port 4011. This change is required in order to allow us to interoperate with dnsmasq, which listens only on port 67. (dnsmasq relies on unspecified behaviour of the Intel PXE stack, which it seems will retain the ProxyDHCPOFFER as an options source and never issue a ProxyDHCPREQUEST, thereby enabling dnsmasq to omit listening on port 4011.)
* [serial] Define constants for serial port I/O addressesThomas Miletich2009-05-211-1/+6
| | | | | | Tested with COM1 and COM2. Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [tftp] Process OACKs even if malformedMichael Brown2009-05-201-12/+28
| | | | | | | | | | | IBM Tivoli PXE Server 5.1.0.3 is reported to send trailing garbage bytes at the end of the OACK packet, which causes gPXE to reject the packet and abort the TFTP transfer. Work around the problem by processing as much as possible of the OACK, and treating name/value parsing errors as non-fatal. Reported-by: Shao Miller <Shao.Miller@yrdsb.edu.on.ca>
* [settings] Fix erroneous bit-masking in fetch_uintz_setting()Michael Brown2009-05-201-1/+2
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* [dhcp] Send broadcast PXE boot server discovery requests to port 67Michael Brown2009-05-201-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We currently send all boot server discovery requests to port 4011. Section 2.2.1 of the PXE spec states that boot server discovery packets should be "sent broadcast (port 67), multicast (port 4011), or unicast (port 4011)". Adjust our behaviour so that any boot server discovery packets that are sent to the broadcast address are directed to port 67 rather than port 4011. This is required for operation with dnsmasq as a PXE server, since dnsmasq listens only on port 67, and relies upon this (specified) behaviour. This change may break some setups using the (itself very broken) Linux PXE server from kano.org.uk. This server will, in its default configuration, listen only on port 4011. It never constructs a boot server list (PXE_BOOT_SERVERS, option 43.8), and uses the wrong definitions for the discovery control bits (PXE_DISCOVERY_CONTROL, option 43.6). The upshot is that it will always instruct the client to perform multicast and broadcast discovery only. In setups lacking a valid multicast route on the server side, this used to work because gPXE would eventually give up on the (non-responsive) multicast address and send a broadcast request to port 4011, which the Linux PXE server would respond to. Now that gPXE correctly sends this broadcast request to port 67 instead, it is never seen by the Linux PXE server, and the boot fails. The fix is to either (a) set up a multicast route correctly on the server side before starting the PXE server, or (b) edit /etc/pxe.conf to contain the server's unicast address in the "multicast_address" field (a hack that happens to work). Suggested-by: Simon Kelley <simon@thekelleys.org.uk>
* [dhcp] Perform ProxyDHCP only if we do not already have PXE optionsMichael Brown2009-05-201-2/+6
| | | | | | | | | | This prevents gPXE from wasting time attempting to contact a ProxyDHCP server on port 4011 if the DHCP response already contains the relevant PXE options. This behaviour is hinted at (though not explicitly specified) in the PXE spec, and seems to match what the Intel client does. Suggested-by: Simon Kelley <simon@thekelleys.org.uk>
* [legal] Add FILE_LICENCE declaration to romprefix.SMichael Brown2009-05-181-0/+2
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* [legal] Add a selection of FILE_LICENCE declarationsMichael Brown2009-05-18518-2/+1039
| | | | | Add FILE_LICENCE declarations to almost all files that make up the various standard builds of gPXE.
* [legal] Add licence.pl and %.licence make targetMichael Brown2009-05-183-1/+144
| | | | | | | | | | | | | It is now possible to run e.g. make bin/rtl8139.dsk.licence in order to see a licensing assessment for any given gPXE build. The assessment will either produce a single overall licence for the build (based on combining all the licences used within the source files for that build), or will exit with an error stating why a licence assessment is not possible (for example, if there are files involved that do not yet contain an explicit FILE_LICENCE() declaration).
* [legal] Add mechanism for explicit per-file licence declarationsMichael Brown2009-05-181-0/+101
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For partly historical reasons, various files in the gPXE source tree are licensed under different, though compatible, terms. Most of the code is licensed under GPLv2 with the "or later" clause, but there are exceptions such as: The string.h file, which derives from Linux and is licensed as Public Domain. The EFI header files, which are taken from the EDK2 source tree and are licensed under BSD. The 3c90x driver, which has a custom GPL-like licence text. Introduce a FILE_LICENCE() macro to make licensing more explicit. This macro should be applied exactly once to each source (.c, .S or .h) file. It will cause a corresponding zero-sized common symbol to be added to any .o files generated from that source file (and hence to any final gPXE binaries generated from that source file). Determining the applicable licences to generated files can then be done using e.g. $ objdump -t bin/process.o | grep __licence 00000000 O *COM* 00000001 .hidden __licence_gpl2_or_later indicating that bin/process.o is covered entirely by the GPLv2 with the "or later" clause, or $ objdump -t bin/rtl8139.dsk.tmp | grep __licence 00033e8c g O .bss.textdata 00000000 .hidden __licence_gpl2_only 00033e8c g O .bss.textdata 00000000 .hidden __licence_gpl2_or_later 00033e8c g O .bss.textdata 00000000 .hidden __licence_public_domain indicating that bin/rtl8139.dsk includes both code licensed under GPLv2 (both with and without the "or later" clause) and code licensed as Public Domain. Determining the result of licence combinations is currently left as an exercise for the reader.
* [legacy] Remove long-obsolete old dhcp.h fileMichael Brown2009-05-182-14/+0Star
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* [pxeprefix] Work around bug in Etherboot 5.4 when loading undionly.kpxeMichael Brown2009-04-301-5/+55
| | | | | | | | | | | | Etherboot 5.4 erroneously treats PXENV_UNLOAD_STACK as the "final shutdown" call, and unhooks INT15. When using gPXE's undionly.kpxe, this results in gPXE overwriting the portion of Etherboot located in high memory, because it is no longer hidden from the system memory map at the time that gPXE loads. Work around this by explicitly testing for Etherboot as the underlying PXE stack (as is already done in undinet.c) and skipping the call to PXENV_UNLOAD_STACK if necessary.
* [build] Add {PROVIDE,REQUIRE}_SYMBOL macros and tidy up compiler.hMichael Brown2009-04-271-41/+68
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* [i386] Remove long-obsolete realmode.c fileMichael Brown2009-04-261-23/+0Star
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* [i386] Remove long-obsolete callbacks_arch.h fileMichael Brown2009-04-261-243/+0Star
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* [build] Fix signed/unsigned division in util/zbin.cStefan Hajnoczi2009-04-261-4/+5
| | | | | | | | | | | | | Commit b149a99 ([build] Round up SUBx deltas) introduced a signed/unsigned issue that affects gPXE images built on 32-bit hosts. The zbin fixup utility performed an unsigned division, which led to .usb images with an incorrect number of sectors to load. The issue snuck by on 64-bit hosts since uint32_t is promoted to long. On 32-bit hosts it is promoted to unsigned long. Modified-by: Michael Brown <mcb30@etherboot.org> Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [elf] Work around entry point bug in NetBSD kernelsMichael Brown2009-04-241-14/+41
| | | | | | | | | | | | | | NetBSD kernels are multiboot ELF kernels with an entry point incorrectly specified as a virtual address rather than a physical address. Work around this by looking for the segment that could plausibly contain the entry point address (interpreted as either a physical or virtual address), and using that to determine the eventual physical entry point. In the event of any ambiguity, precedence is given to interpretation of the entry point as a physical address.
* [multiboot] Work around raw-flag bug in Solaris kernelsMichael Brown2009-04-241-8/+15
| | | | | | | | | | | Solaris kernels are multiboot images with the "raw" flag set, indicating that the loader should use the raw address fields within the multiboot header rather than looking for an ELF header. However, the Solaris kernel contains garbage data in the raw address fields, and requires us to use the ELF header instead. Work around this by always using the ELF header if present. This renders the "raw" flag somewhat redundant.
* [doc] Remove obsolete README.pixifyMichael Brown2009-04-181-90/+0Star
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* [build] Automatically sort the list of constituent object sizesMichael Brown2009-04-181-1/+2
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* [build] Provide mechanism for listing constituent object sizesMichael Brown2009-04-181-0/+2
| | | | | | | | | | You can now type e.g. make bin/rtl8139.rom.sizes in order to see the (uncompressed) sizes of all of the object files linked in to bin/rtl8139.rom. This should make it easier to identify relevant code bloat.
* [build] Remove obsolete linker script filesMichael Brown2009-04-175-189/+0Star
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* [build] Kill off the multiple-object-per-source-file mechanismMichael Brown2009-04-171-17/+1Star
| | | | | Now that there are no remaining multiple-object source files, kill off the mechanism in order to simplify the Makefile.
* [build] Kill off the last multiple-object source fileMichael Brown2009-04-172-5/+7
| | | | | | | The build mechanism currently allows for multiple objects per source file. The only remaining user of this is unnrv2b.S. Replace this usage with a separate unnrv2b16.S wrapper file, as is currently used for e.g. pxeprefix.S and kpxeprefix.S.
* [build] Provide mechanism for listing per-target source filesMichael Brown2009-04-171-0/+28
| | | | | | | | | | | | | | | | | | | | You can now type e.g. make bin/rtl8139.rom.deps to see a list of the source files included in the build of bin/rtl8139.rom. This is intended to assist with copyright vetting. Other new debugging targets include make bin/rtl8139.rom.objs to see a list of object files linked in to bin/rtl8139.rom, and make bin/rtl8139.rom.nodeps to see a list of the source files that are *not* required for the build of bin/rtl8139.rom.
* [build] Simplify use of Getopt::Long in padimg.plMichael Brown2009-04-161-4/+3Star
| | | | | | Sometimes it's just so much fun doing things the complicated way that you forget to check the man page for the existence of a simpler syntax.
* [build] Reinstate the .pdsk padded-floppy image formatMichael Brown2009-04-162-3/+10
| | | | | | Some utilities that expect a floppy disk image (e.g. iLO?) may test for a file of the correct size. Reinstate the .pdsk image format in order to provide this if needed.
* [build] Pad .rom, .dsk, and .hd images to 512-byte boundariesMichael Brown2009-04-167-21/+54
| | | | | | | | QEMU will silently round down a disk or ROM image file to the nearest 512 bytes. Fix by always padding .rom, .dsk and .hd images to the nearest 512-byte boundary. Originally-fixed-by: Stefan Hajnoczi <stefanha@gmail.com>
* [dhcp] Accept filename via DHCP option 67 as well as BOOTP filename fieldMichael Brown2009-04-151-4/+8
| | | | | Allow options with dedicated BOOTP fields to fall back to using the equivalent DHCP option if the relevant field is empty.
* [smbios] Add asset tag settingTimothy Stack2009-04-152-0/+27
| | | | | | Add SMBIOS asset tag as a named setting. Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [gdb] Allow resynchronisation with gdbStefan Hajnoczi2009-04-151-6/+4Star
| | | | | | | | | This replaces the gdbstub's polite NAK behavior with retransmission of the current outstanding reply packet. It solves situations where gdb and gPXE's gdbstub get out of sync due to the lack of flow control in the gdb protocol spec. Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [build] Round up SUBx deltasStefan Hajnoczi2009-04-151-7/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The zbin compressor fixup utility rounds down file sizes before calculating their difference. This produces incorrect values and may cause truncated gPXE images to be loaded at boot. The following example explains the problem: ilen = 48 bytes (uncompressed input file) olen = 17 bytes (compressed output file) divisor = 16 bytes (paragraph granularity) fixmeup = 3 paragraphs (value to fix up) olen / divisor - ilen / divisor = 1 - 3 = -2 paragraphs (old delta calculation) ( align ( olen, divisor ) - align ( ilen, divisor ) ) / divisor = 2 - 3 = -1 paragraphs (new delta calculation) If we perform the SUBx operation with old delta: fixmeup + -2 = 1 paragraph gets loaded by the prefix With the new delta: fixmeup + -1 = 2 paragraphs get loaded by the prefix The old delta calculation removes the last paragraph; the prefix will load a truncated copy of gPXE into memory. We need to load 2 paragraphs since olen is 17 bytes. Loading only 1 paragraph (16 bytes) would truncate the last byte. Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [pcbios] Don't use "lret $2" to return from an interruptH. Peter Anvin2009-04-153-13/+26
| | | | | | | | | | | | | Using "lret $2" to return from an interrupt causes interrupts to be disabled in the calling program, since the INT instruction will have disabled interrupts. Instead, patch CF on the stack and use iret to return. Interestingly, the original PC BIOS had this bug in at least one place. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [build] Don't assume the existence of "seq"Michael Brown2009-03-311-1/+9
| | | | | | | | The "seq" command is GNU-specific; a BSD userland will not have it. Use POSIX-conforming "awk" instead. Reported-by: Joshua Oreman <oremanj@rwcr.net> Suggested-by: Stefan Hajnoczi <stefanha@gmail.com>
* [efi] Allow building with non-system libbfdMichael Brown2009-03-312-4/+8
| | | | | | | On Mac OS X, it is necessary to build binutils manually; the system does not provide bfd.h or the libbfd or libiberty libraries. Originally-fixed-by: Joshua Oreman <oremanj@rwcr.net>
* [efi] Fix compilation on Mac OS X.Michael Brown2009-03-311-0/+1
| | | | | | | | | | | | | The Mac compiler treats "#pragma pack()" as gcc's "#pragma pack(pop)", and so dies if the pragma pack stack is empty. Adding a "#pragma pack(1)" immediately beforehand is enough to keep the Mac compiler happy. The combination of "#pragma pack(1)", "#pragma pack()" won't actually achieve anything on a Mac, but it will at least build. (With gcc, the "#pragma pack()" overrides any previous pragmas, so is still useful.) Suggested-by: Joshua Oreman <oremanj@rwcr.net>
* [build] Use __SIZE_TYPE__ macro in definition of size_tJoshua Oreman2009-03-313-3/+13
| | | | | | | This is required in order to build on Mac OS X. Modified-by: Michael Brown <mcb30@etherboot.org> Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [3c90x] Add missing size_t format specifierJoshua Oreman2009-03-311-1/+1
| | | | Signed-off-by: Michael Brown <mcb30@etherboot.org>
* [efi] Use POSIX version of basename() in elf2efi.cMichael Brown2009-03-311-1/+6
| | | | | | This is required in order to build on Mac OS X. Suggested-by: Joshua Oreman <oremanj@rwcr.net>
* [build] Add --divide to ASFLAGS if supported by the assemblerMichael Brown2009-03-311-0/+8
| | | | | | | | | Some builds of the GNU assembler will treat a '/' character as a comment delimiter. Adding "--divide" will cause it to be treated as a division operator, as we expect. The "--divide" option is not available in all gas versions, so apply it only conditionally. Suggested-by: Joshua Oreman <oremanj@rwcr.net>
* [int13] Improve debugging messagesMichael Brown2009-03-311-4/+11
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* [segment] Add "Requested memory not available" error messageMichael Brown2009-03-312-0/+12
| | | | | | | | | | | prep_segment() can sometimes fail because an image requests memory that is already in use by gPXE. This will happen if e.g. undionly.kpxe is used to boot memtest86; the memtest86 image is an old-format kernel that needs to be loaded at 9000:0000, but this area of memory may well already be in use by the underlying PXE stack. Add a human-friendly error message, so that the cause is more immediately visible.
* [resolv] Simplify xfer_redirect() logicMichael Brown2009-03-301-11/+30
| | | | | Now that we have xfer_vreopen() as the default .vredirect handler, sending redirection events can become simpler.
* [http] Support HTTP redirectionMichael Brown2009-03-301-0/+28
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* [xfer] Implement xfer_vreopen() to properly handle redirectionsMichael Brown2009-03-3013-14/+44
| | | | | When handling a redirection event, we need to close the existing connection before opening the new connection.
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